/// <summary>
/// Verbindet die zuvor definierte Netzwerkfreigabe. Im Fehlerfall ein das Event NetworkError ausgelöst.
/// </summary>
/// <returns>Ergebnis des Verbindugsversuchs</returns>
public String Connect()
{
var netResource = new NetworkResource()
{
_Scope = ResourceScope.GlobalNetwork,
_ResourceType = ResourceType.Disk,
_DisplayType = ResourceDisplaytype.Share,
_RemoteName = this._networkName
};
var userName = string.IsNullOrEmpty(this._credentials.Domain)
? this._credentials.UserName
: string.Format(@"{0}\{1}", this._credentials.Domain, this._credentials.UserName);
var result = WNetAddConnection2(
netResource,
this._credentials.Password,
userName,
0);
if (result != 0)
{
if (this.NetworkError != null)
{
String Errorhint = "";
if (this.Errorhints.ContainsKey(result.ToString()))
{
Errorhint += "\r\n" + this.Errorhints[result.ToString()];
}
this.NetworkError(this, new ErrorEventArgs("Error connecting to remote share \"" + this._networkName + "\" as user \"" + this._credentials.UserName + "@" + this._credentials.Domain + "\". Errorcode is: " + result.ToString() + Errorhint)); //Wieder einkommentieren
//this.NetworkError(this, new ErrorEventArgs("Error connecting to remote share \"" + this._networkName + "\" as user \"" + this._credentials.UserName + "@" + this._credentials.Domain + "\" using Password \"" + this._credentials.Password + "\". Errorcode is: " + result.ToString())); //DEBUG!! //Auskommentieren!!
}
}
return(result.ToString());
}
/// <summary>
/// Verbindet die zuvor definierte Netzwerkfreigabe. Im Fehlerfall ein das Event NetworkError ausgelöst.
/// </summary>
/// <returns>Ergebnis des Verbindugsversuchs</returns>
public String Connect(bool forcedisconnectother = false)
{
var netResource = new NetworkResource()
{
_Scope = ResourceScope.GlobalNetwork,
_ResourceType = ResourceType.Disk,
_DisplayType = ResourceDisplaytype.Share,
_RemoteName = this._networkName
};
var userName = string.IsNullOrEmpty(this._credentials.Domain)
? this._credentials.UserName
: string.Format(@"{0}\{1}", this._credentials.Domain, this._credentials.UserName);
var result = WNetAddConnection2(
netResource,
this._credentials.Password,
userName,
0);
if (result != 0)
{
if (result == 1219 /*0x4c3*/)
{
if (forcedisconnectother)
{
/*
* https://docs.microsoft.com/en-us/windows/win32/debug/system-error-codes--1000-1299-
* ERROR_SESSION_CREDENTIAL_CONFLICT
* 1219 (0x4C3)
* Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed. Disconnect all previous connections to the server or shared resource and try again.
*
* -> Sadly Windows even in 2020 is still not capable of connecting SMB as multiple-users simultainiously. We may need to close existings connections if we hit tis error code. However this will only we work if no active session is opened in explorer.
* We may use: WNetCancelConnection2(networkName, 0, true); for this
* -> See https://stackoverflow.com/questions/9085586/wnetaddconnection2-and-error-1219-automatically-disconnect/18700184
*/
try
{
WNetCancelConnection2(this._networkName, 0, true); //Force close an active SMB-Session to that resource
}
catch
{
}
/*
* disconnecttry++;
*
* if (disconnecttry > 3)
* {
* System.c
* }
*/
}
}
if (this.NetworkError != null)
{
String Errorhint = "";
if (this.Errorhints.ContainsKey(result.ToString()))
{
Errorhint += "\r\n" + this.Errorhints[result.ToString()];
}
this.NetworkError(this, new ErrorEventArgs("Error connecting to remote share \"" + this._networkName + "\" as user \"" + this._credentials.UserName + "@" + this._credentials.Domain + "\". Errorcode is: " + result.ToString() + Errorhint)); //Wieder einkommentieren
//this.NetworkError(this, new ErrorEventArgs("Error connecting to remote share \"" + this._networkName + "\" as user \"" + this._credentials.UserName + "@" + this._credentials.Domain + "\" using Password \"" + this._credentials.Password + "\". Errorcode is: " + result.ToString())); //DEBUG!! //Auskommentieren!!
}
}
return(result.ToString());
}
private static extern int WNetAddConnection2(NetworkResource netResource,
string password, string username, int flags);
